﻿<p>The <em>IfcDayInWeekNumber</em> is
an integer that defines the position of the specified day in a week. The positions have the following 
meaning that assigns the ordinal day number in the week to the Calendar day name.</p>

<p>Ordinal day numbers map to calendar days as follows:</p>
<ul>
<li><b>1</b>: Monday</li>
<li><b>2</b>: Tuesday</li>
<li><b>3</b>: Wednesday</li>
<li><b>4</b>: Thursday</li>
<li><b>5</b>: Friday</li>
<li><b>6</b>: Saturday</li>
<li><b>7</b>: Sunday</li>

<p>Type: INTEGER</p>

<blockquote class="note">
NOTE&nbsp; See definition of <strong>calendar week</strong> as defined in ISO&nbsp;8601. 
</blockquote>

<blockquote class="history">
HISTORY&nbsp; New type in IFC4.
</blockquote>